Checking The Timing Chain Tensioner; Installing The Camshafts - Yamaha YZF-R1P Service Manual

CAMSHAFT
EAS00210
CHECKING THE TIMING CHAIN
TENSIONER
1. Check:
• timing chain tensioner
Cracks/damage → Replace.
2. Check:
• one-way cam operation
Rough movement → Replace the timing
chain tensioner housing.
3. Check:
• cap bolt
• copper washer
• spring
• one-way cam
• gasket
• timing chain tensioner rod
Damage/wear → Replace the defective
part(s).
EAS00214

INSTALLING THE CAMSHAFTS

1. Install:
• exhaust camshaft 1
• intake camshaft 2
(with the camshaft sprockets temporarily
tightened)
NOTE:
_
Make sure the punch mark a faces up.
2. Install:
• dowel pins
• intake camshaft caps
• exhaust camshaft caps
NOTE:
_
• Make sure each camshaft cap is installed in
its original place. Refer to the identification
marks as follows:
"I": Intake
"E": Exhaust
• Make sure the arrow mark a on each cam-
shaft cap points towards the right side of the
engine.
3. Install:
• camshaft cap bolts
NOTE:
_
Tighten the camshaft cap bolts in stages and
in a crisscross pattern, working from the inner
caps out.
5 - 15
ENG
10 Nm (1.0 m · kg, 7.2 ft · lb)